Deadbolt



FIG. 1 is a perspective view of a deadbolt showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a right side view, left side view being a mirror image thereof; and,

FIG. 6 is a back view thereof.

The broken lines in the Figures are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a deadbolt, as shown and described. 